公开(公告)号：US20140356088A1

公开(公告)日：2014-12-04

申请号：US14462935

申请日：2014-08-19

Applicant: BLACK & DECKER INC.

Inventor： Aland SANTAMARINA ,  Glen V. STEINBRUNNER ,  David N. JOHNSON

IPC: B23B51/00

CPC classification number: B23B51/02 ,  B23B2240/16 ,  B23B2251/043 ,  B23B2251/18 ,  B23B2251/404 ,  B23B2251/60 ,  B23P15/32 ,  Y10T408/78 ,  Y10T408/905 ,  Y10T408/906 ,  Y10T408/9065 ,  Y10T408/909 ,  Y10T408/9093 ,  Y10T408/9097

Abstract: An elongated drill bit has a shank at one end and working end at the other. A flute portion is between the working end and the shank. The flute portion is continuous with the shank and working end and is generally unitarily formed with them. The flute portion has at least one flute with a helix angle between approximately 30° and 35°. The working end has a pilot tip with a cutting portion. A tapered web is formed in the flute portion, a thickness of the web at the tip of the working end is about 9% to 15% of the nominal diameter.

Abstract translation: 细长的钻头在一端具有柄，在另一端具有工作端。 凹槽部分在工作端和柄之间。 凹槽部分与柄和工作端连续并且与它们大致整体形成。 凹槽部分具有至少一个具有大约30°和35°之间的螺旋角的凹槽。 工作端具有带切割部分的导向尖端。 在凹槽部分中形成有锥形腹板，在工作端的尖端处的腹板的厚度为公称直径的约9％至15％。

公开(公告)号：US07887269B2

公开(公告)日：2011-02-15

申请号：US11973653

申请日：2007-10-10

Applicant: Hagen Walter Dost ,  Javier Ibarra Sandoval

Inventor： Hagen Walter Dost ,  Javier Ibarra Sandoval

IPC: B23B51/00

CPC classification number: B27G15/00 ,  Y10T408/899 ,  Y10T408/901 ,  Y10T408/902 ,  Y10T408/906 ,  Y10T408/909 ,  Y10T408/9093

Abstract: A spade bit includes a shaft defining an axis, and a blade attached to the shaft and having a first blade portion and a second blade portion. The first blade portion defines a first leading face portion, and the second blade portion defines a second leading face portion. The first blade portion defines a first cutting edge portion, and the second blade portion defines a second cutting edge portion. The first cutting edge portion lies on a first border portion of the first leading face portion, and the second cutting edge portion lies on a second border portion of the second leading face portion. The first cutting edge portion and the second cutting edge portion both lie in a plane P1. An area A1 is bound by the plane P1 and the first leading face portion when the first blade portion is viewed in a first cross section taken along a plane P2 which is parallel to and spaced apart from the axis by a distance D1, and the area A1 increases as the distance D1 increases. The area A2 is bound by the plane P1 and the second leading face portion when the second blade portion is viewed in a second cross section taken along a plane P3 which is parallel to and spaced apart from the axis by a distance D2, and the area A2 increases as the distance D2 increases.

Abstract translation: 铲形刀头包括限定轴的轴和附接到轴的刀片，并具有第一刀片部分和第二刀片部分。 第一叶片部分限定第一引导面部分，并且第二叶片部分限定第二引导面部分。 第一叶片部分限定第一切割边缘部分，并且第二叶片部分限定第二切割边缘部分。 第一切削刃部分位于第一引导面部分的第一边界部分上，第二切削刃部分位于第二引导面部分的第二边界部分上。 第一切削刃部分和第二切削刃部分均位于平面P1中。 当沿着与轴平行并与其间隔开距离D1的平面P2截取的第一横截面中观察第一叶片部分时，区域A1被平面P1和第一引导面部分约束，并且区域 A1随着距离D1的增加而增加。 当沿着与轴平行并与其间隔开距离D2的平面P3截取的第二横截面中观察第二叶片部分时，区域A2被平面P1和第二引导面部分约束，并且面积 A2随着距离D2的增加而增加。

公开(公告)号：US20070251727A1

公开(公告)日：2007-11-01

申请号：US11811454

申请日：2007-06-11

Applicant: Donald DeVall

Inventor： Donald DeVall

IPC: E21B10/43 ,  E21B7/00

CPC classification number: E21B10/54 ,  E21B10/26 ,  E21B10/43 ,  Y10T408/9093

Abstract: A drill steel includes a drill bit and a reamer bit. The drill steel rotates the drill bit to form a hole in a work surface and drives forward to insert the reamer bit into the hole. The reamer bit includes a plurality of inserts positioned on a cylindrical drilling surface to ream out the hole by carving channels in the hole interior surface. The inserts include cutting elements that have radiused or arcuate edges.

Abstract translation: 钻钢包括钻头和铰刀钻头。 钻钢杆旋转钻头，在工作表面形成一个孔，向前推动将铰刀钻头插入孔中。 扩孔钻头包括定位在圆柱形钻孔表面上的多个插入件，以通过在孔内表面中雕刻通道来排出孔。 刀片包括具有圆角或弧形边缘的切割元件。

公开(公告)号：US06957937B2

公开(公告)日：2005-10-25

申请号：US10077884

申请日：2002-02-20

Applicant: Kailash C. Vasudeva

Inventor： Kailash C. Vasudeva

IPC: B23B51/00 ,  B27G15/00 ,  B23B51/02

CPC classification number: B23B51/0009 ,  B23B2251/082 ,  B27G15/00 ,  Y10T408/899 ,  Y10T408/901 ,  Y10T408/9065 ,  Y10T408/9093

Abstract: A spade drill bit has a shaft and a spade head portion arranged on the shaft. The head portion has a rearward facing bottom edge, two longitudinal sides and a forward facing cutting edge. The cutting edge has a pointed, generally triangularly shaped tip and outer ends. The longitudinal sides of the head portion are bent along a bend in a direction of rotation of the drill bit during operation, so that the outer ends are bent forwards in the rotating direction. The bend runs from a first position at one of the longitudinal sides, closer to the bottom edge than to the cutting edge, and to a second position at the cutting edge between the outer end and the tip.

Abstract translation: 铲钻具有轴和设置在轴上的铲头部。 头部具有向后的底部边缘，两个纵向侧面和向前切割刃。 切削刃具有尖锐的，大致三角形的尖端和外端。 在操作期间，头部的纵向侧面沿着钻头的旋转方向沿着弯曲部弯曲，使得外端沿着旋转方向向前弯曲。 弯曲部从第一位置延伸到一个纵向侧面，更靠近底部边缘而不是切割边缘，并且在外部端部和尖端之间的切割边缘处的第二位置延伸。

公开(公告)号：US06629805B1

公开(公告)日：2003-10-07

申请号：US09807568

申请日：2001-06-05

Applicant: Karl Eischeid

Inventor： Karl Eischeid

IPC: B23B5100

CPC classification number: B23B51/00 ,  B23B51/0009 ,  B23B51/02 ,  B23B2226/75 ,  B23B2251/04 ,  B23B2251/14 ,  B23B2251/50 ,  Y10T408/9093 ,  Y10T408/9097

Abstract: The invention concerns a hard-metal cutting tip for use on a drill, particularly on a rock or concrete drill, including a drill point (3) extending through an axis of rotation of the drill, primary cutting edges (6) that slope downwardly on both sides, each composed of a primary land (4) and a primary flank (5), the primary flank (5) forming at the primary cutting edge (6) a primary lip clearance angle (14) with a plane perpendicular to the axis of rotation. To provide a hard-metal cutting tip that possesses high cutting, feed, bending and breaking strength and wear resistance, especially at its outer regions subjected to high peripheral speeds, the hard-metal cutting tip is realized such that the primary lip clearance angle (14) formed at the primary cutting edge (6) decreases with increasing distance from the drill point (3).

Abstract translation: 本发明涉及一种用于钻头，特别是在岩石或混凝土钻机上的硬金属切削刀片，包括延伸穿过钻头旋转轴线的钻头（3），向下倾斜的主切削刃（6） 两侧各自由一个初级边缘（4）和一个主要侧面（5）组成，主要侧面（5）在主切割边缘（6）处形成一个具有垂直于轴线的平面的主唇缘间隙角（14） 的旋转。 为了提供具有高切削，进给，弯曲和断裂强度和耐磨性的硬金属切削刀头，特别是在其高周边速度的外部区域，实现了硬金属切削刀片，使得主唇缘间隙角 形成在主切削刃（6）处的14）随着与钻头（3）的距离的增加而减小。

公开(公告)号：US5700113A

公开(公告)日：1997-12-23

申请号：US366986

申请日：1994-12-30

Applicant: Paul Andrew Stone ,  Rickey James Thomas

Inventor： Paul Andrew Stone ,  Rickey James Thomas

IPC: B23B51/00 ,  B21J5/02 ,  B21J5/12 ,  B21J9/06 ,  B21K5/02 ,  B21K27/00 ,  B21K27/02 ,  B23P15/28 ,  B27G15/00 ,  B23B35/00 ,  B23B51/02

CPC classification number: B21J9/06 ,  B21J5/12 ,  B21K27/02 ,  B21K5/02 ,  B23P15/28 ,  B27G15/00 ,  Y10T408/03 ,  Y10T408/902 ,  Y10T408/9065 ,  Y10T408/9093

Abstract: The spade-type boring bit includes an elongate shank defining a central longitudinal axis and a blade portion joined to one end of the shank and including a pair of generally flat side segments extending laterally from the central longitudinal axis. Each side segment includes a respective forward cutting edge which are aligned with each other along a centerline which passes through the central longitudinal axis of the elongate shaft so as to increase the efficiency with which the spade bit drills. The spade bit also includes a spur joined to and extending axially from the forward end of the blade portion. The spur can include spur cutting edges separated radially, angularly and, in some instances, longitudinally or axially from the forward cutting edge of the adjacent side segment to prevent accumulation of chip swarf between the spur cutting edge and the adjacent forward cutting edge. The present invention also provides a method and apparatus of forging a plurality of parts from a continuous metal stock which provides for rapid fabrication of parts having fine features, such as a spade bit. In particular, the continuous metal stock is incrementally advanced and the leading portion of the metal stock is clamped following each incremental advance. Thereafter, a portion of the metal stock is forged, such as with radially closed dies which impart axial and radial forces to the metal stock which, in turn, generate compressive, tensile and shear stresses within the workpiece. The longitudinal growth of the continuous metal stock created during the forging is compensated by permitting upstream longitudinal constraint or movement of the continuous metal stock as appropriate for forming the part.

Abstract translation: 铲形钻头包括限定中心纵向轴线的细长柄和连接到柄的一端的刀片部分，并且包括从中心纵向轴线横向延伸的一对大致平坦的侧部段。 每个侧段包括相应的前切削刃，它们沿着穿过细长轴的中心纵向轴线的中心线彼此对准，以便提高铲钻钻头的效率。 铲形钻头还包括连接到叶片部分的前端并从叶片部分的前端轴向延伸的凸起。 支柱可以包括从相邻侧段的前切割刃径向地，有角度地，并且在一些情况下沿纵向或轴向分开的尖锐切削刃，以防止切屑切割边缘与相邻前切削刃之间的堆积。 本发明还提供了一种从连续金属坯料锻造多个部件的方法和装置，其提供了具有精细特征的部件（例如铲形钻头）的快速制造。 特别地，连续金属坯料逐渐进行，并且在每次增量提前之后夹紧金属坯料的前端部分。 此后，金属坯料的一部分被锻造，例如具有向金属坯料施加轴向和径向力的径向封闭的模具，其进而在工件内产生压缩，拉伸和剪切应力。 在锻造期间产生的连续金属坯料的纵向生长通过允许连续金属坯料的上游纵向约束或运动适于形成部件来补偿。

公开(公告)号：US5221166A

公开(公告)日：1993-06-22

申请号：US739600

申请日：1991-07-31

Applicant: John D. Bothum

Inventor： John D. Bothum

IPC: B27G15/00

CPC classification number: B27G15/00 ,  Y10T408/90 ,  Y10T408/901 ,  Y10T408/9093

Abstract: A spade-type drill bit is disclosed having a shank portion and a spade bit portion extending from the shank portion. The spade bit portion includes a spade portion with a planar region, and a center tip concentric with a longitudinal axis and extending from the spade portion. First and second radial cutting edges extend from the center tip toward first and second corner tips. First and second longitudinal cutting edges extend along longitudinal sides of the spade portion and terminate at the first and second corner tips. The first and second corner tips are located forward of the plane of the spade portion in the direction of rotation of the drill bit. The first and second radial cutting edges, and the first and second longitudinal cutting edges further include curved portions adjacent each of the first and second corner tips. Threads may also be provided on the center tip. A method of manufacturing is disclosed wherein each of the corner tips are formed by cutting from a smashed planar portion of a round rod an outline of the spade bit and further bending each of the corner tips in a direction of rotation of the spade bit.

Abstract translation: 公开了一种铲形钻头，其具有从柄部分延伸的柄部分和铲形钻头部分。 铲形部分包括具有平坦区域的铲形部分和与纵向轴线同心并且从铲形部分延伸的中心尖端。 第一和第二径向切割刃从中心尖端朝向第一和第二拐角尖端延伸。 第一和第二纵向切削刃沿着铲形部分的纵向侧边延伸并且终止在第一和第二拐角尖端处。 第一和第二角尖在钻头的旋转方向上位于铲形部分的平面的前方。 第一和第二径向切削刃以及第一和第二纵向切削刃还包括与第一和第二转角尖端相邻的弯曲部分。 螺纹也可以设在中心尖端上。 公开了一种制造方法，其中每个角尖通过从圆棒的粉碎的平坦部分切割铲形钻头的轮廓并且进一步在铲形钻头的旋转方向上弯曲每个角尖来形成。

公开(公告)号：US4189266A

公开(公告)日：1980-02-19

申请号：US822326

申请日：1977-08-05

Applicant: George Koslow

Inventor： George Koslow

IPC: B23B51/00 ,  B23B51/02

CPC classification number: B23B51/0081 ,  B23B51/0009 ,  B23B51/009 ,  B23B51/02 ,  B23B2251/087 ,  B23B2251/14 ,  B23B2251/287 ,  B23B2251/48 ,  B23B2251/50 ,  Y10T408/906 ,  Y10T408/9093 ,  Y10T408/9095 ,  Y10T408/9097

Abstract: A rotary drill bit for hand-held power drills comprises successively, a cutting section of progressively increasing diameter, a section of decreasing diameter and a shank portion for mounting the bit in a hand-held electric drill. The cutting section of the bit comprises a plurality of cutting edges disposed symetrically about the axis of rotation of the bit and extending rearwardly from the apex at an angle to the axis. The cutting edges have cutting portions and noncutting portions which are so-arranged that the cutting portions of one cutting edge cut selected diameters of a hole to be bored and cutting portions of another cutting edge cut other diameters of the hole whereby all cutting edges together cut all diameters of the hole. The sum of the lengths of the cutting portions of all of the cutting edges is approximately equal to the total length of one cutting edge so that the torque required to turn the bit is reduced. The cutting portions are disposed approximately to balance lateral forces on the bit during boring.

Abstract translation: 用于手持式电动钻的旋转钻头依次包括逐渐增加的直径的切割部分，直径减小的部分和用于将钻头安装在手持式电钻中的柄部分。 钻头的切割部分包括多个相对于钻头的旋转轴线对称设置的切削刃，并且从顶点向轴向一定角度向后延伸。 切削刃具有切割部分和非切割部分，该切割部分和非切割部分被设置成使得一个切削刃的切割部分切割要钻孔的选定直径，并且另一切削刃的切割部分切割孔的其它直径，从而所有切削刃一起切割 所有孔的直径。 所有切削刃的切削部分的长度的总和近似等于一个切削刃的总长度，从而减小转动钻头所需的扭矩。 切割部分大致设置成在钻孔期间平衡钻头上的横向力。

公开(公告)号：US4125050A

公开(公告)日：1978-11-14

申请号：US803801

申请日：1977-06-06

Applicant: Irwin J. Schwartzman ,  Paul K. Wilgermein

Inventor： Irwin J. Schwartzman ,  Paul K. Wilgermein

IPC: F16B25/10 ,  F16B25/00

CPC classification number: F16B25/0084 ,  F16B25/103 ,  Y10T408/9093

Abstract: A self-drilling screw having an elongated threaded shank with a driving head at one end and a drilling body portion at its other end formed with longitudinally extending flutes located substantially on opposite sides of the body, these flutes defining rectilinear tip and side cutting edges positioned along opposite sides of the body, the tip-cutting edges being forwardly offset and angularly diverging from the ends of a transverse cutting edge, formed on a tip web, to diametral opposite points on the body providing a transverse width at least equal to the root diameter of the threads on the shank, and at which points the tip-cutting edges connect with the side-cutting edges which are angularly inclined towards their outer ends in a rearward direction circumferentially of the body and in a radially inwardly direction of said body. Narrow inwardly inclined relief planar surfaces parallel the respective cutting edges, and are augmented by a plurality of additional contiguous back relief planar surfaces of greater angular inclination than the relief surfaces extending immediately along the cutting edges.

Abstract translation: 一种自钻螺钉，其具有在一端具有驱动头的细长螺纹杆和在其另一端处的钻体主体部分，其基本上位于主体的相对侧上形成有纵向延伸的凹槽，这些凹槽限定直线尖端和侧切割刃， 沿着身体的相对侧，尖端切割边缘向前偏移并且形成在尖端腹板上的横向切割边缘的端部成角度地分布到主体上的直径相对的点上，该横向宽度至少等于根部 刀柄上的螺纹的直径，并且在该点处，尖端切削刃与侧切割边缘连接，该侧边缘沿着身体的周向向后方向并且在所述主体的径向向内方向上朝向其外端成角度地倾斜。 窄的向内倾斜的平坦表面平行于相应的切割边缘，并且通过多个附加的邻接的后凸面平面表面增大，该平坦表面比沿着切割边缘立即延伸的浮雕表面具有更大的角度倾斜。

公开(公告)号：US4016795A

公开(公告)日：1977-04-12

申请号：US623612

申请日：1975-10-20

Applicant: Peter John Gill

Inventor： Peter John Gill

IPC: B21K1/56 ,  B23P15/32 ,  B23P15/52 ,  F16B15/00 ,  F16B25/10 ,  F16B25/00

CPC classification number: F16B25/103 ,  B21K1/56 ,  B23P15/32 ,  B23P15/52 ,  F16B15/00 ,  F16B25/0084 ,  Y10T408/9093

Abstract: A self-drilling and self-tapping fastener, particularly suitable for use in relatively thick metal, which is made from a headed blank by a method including pressing into the cylindrical free end of the blank a pair of straight flutes, by dies which are closed together on a line which is acutely angled to both the leading and trailing walls of the flutes. The flutes are inclined in opposite directions relative to the screw axis and are positioned on opposite sides of the screw. The tip is machined off to a V-form, to provide a ridge angularly advanced about the axis of the screw relative to the cutting edges of the flutes. Further machining may remove metal from the sides of the drill point between the flutes to provide flats and the drill point may be turned to a circular cross-section to provide sharp well-supported cutting edges for improved wear resistance. The drill point may taper overall, being of smallest diameter adjacent the threaded fastener shank.

Abstract translation: 一种自钻自攻紧固件，特别适用于相对较厚的金属，其由头部坯料制成，该方法包括通过封闭的模具将一对直的凹槽压入坯料的圆柱形自由端 一起在与凹槽的前壁和后壁成锐角的直线上。 凹槽相对于螺杆轴线在相反方向倾斜并且位于螺钉的相对侧上。 尖端被加工成V形，以提供相对于凹槽的切割边缘围绕螺钉的轴线成角度地前进的脊。 进一步加工可以从凹槽之间的钻头的侧面移除金属以提供平面，并且钻点可以转到圆形横截面，以提供锋利的良好支撑的切削刃，以改善耐磨性。 钻尖可以整体变细，与螺纹紧固件柄相邻的最小直径。